Rokinon WP750IF 7x50 Waterproof Binoculars with Built-In Compass (Black) 7X magnification and 50mm Fully multi-coated objective lenses, BaK 4 Porro Prisms. Built in Compass, Illuminated Reticle, and built in rangerfinder Buoyant, waterproof body and nitrogen purged to prevent internal fogging. field of view 7.5 degrees; 396 ft at 1000 yards. Relative brightness: 51, twilight index: 18.71 Includes Deluxe carrying case, strap and cleaning cloth 7X magnification and 50mm Fully multi-coated objective lenses, BaK 4 Porro Prisms. ^Built in Compass, Illuminated Reticle, and built in rangefinder ^Buoyant, waterproof body and nitrogen purged to prevent internal fogging. ^field of view 7.5 degrees; 396 ft. at 1000 yards. Relative brightness: 51, twilight index: 18.71 ^Includes Deluxe carrying case, strap and cleaning cloth